Mouth taping has become a viral “sleep hack”: put tape over your lips at night to force nasal breathing, reduce snoring, and wake up feeling better. The problem is that mouth breathing is often a symptom (nasal obstruction, sleep-disordered breathing, allergy, reflux, habit, craniofacial factors). Taping the mouth shut can mask the cause—or make breathing … Continue reading Mouth Taping: When It’s Risky, When It’s Reasonable, and What to Do Instead